Lipase-catalyzed synthesis of aromatic polyesters

XY Wu, Y-Y Linko, J Seppälä, M Leisola, P Linko

    Research output: Contribution to journalArticleScientificpeer-review

    7 Citations (Scopus)


    The enzymatic synthesis of aromatic polyesters by direct polyesterification between a diacid and a diol is described. The effects of the type of substrate, type and quantities of lipase, temperature, vacuum, and reaction time on the synthesis of aromatic polyesters were studied in detail. Among three lipases investigated, only Novozym 435 worked well for aromatic polyester synthesis. Temperature and vacuum played an important role in obtaining a high molar mass of the aromatic polyesters. Furthermore, with isophthalic acid and 1,6-hexanediol as substrates, the mass average molar mass of the polyester obtained increased with an increase in the lipase quantity up to 0.375 g (11.7%, w/w of total reactor contents). The mass average molar mass of the polyester was as high as 50000 g mol-1 in 168 h, with a polydispersity of PD ≃ 1.4.

    Original languageEnglish
    Pages (from-to)328-332
    Number of pages5
    JournalJournal of Industrial Microbiology and Biotechnology
    Issue number6
    Publication statusPublished - 1998
    MoE publication typeA1 Journal article-refereed


    • Aromatic polyester
    • Diacid
    • Diol
    • Enzymatic synthesis
    • Lipase
    • Polyesterification


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